This picture shows Francis Picabia’s landmark stage set-design for Relâche (1924), an avant-garde ballet created by the painter and his composer friend, Erik Satie. The idea of putting lights on the stage challenged traditional theatre lighting in which performers on stage are lit and the audience disappears in the dark. In a Dada gesture Picabia lit the audience from the stage, temporarily blinding them and thus reversing the role of audience and performer. In the Line of Sight can create a similar situation when audience members walk through the flashlights’ light beam and see themselves in the spotlight.